dynabook Satellite C50-J User manual

March 11th, 2022
Dynabook Laptop Components Classified as Requiring Selective Treatment
Dynabook would like to communicate the method of identifying and removing
components contained in Dynabook notebook products, including but not limited to the
Satellite C50-J / Satellite Pro C50-J model, that requires selective treatment based
on the European WEEE Directive, Directive 2012/19/EU of the European Parliament
and of the Council on waste electrical and electronic equipment (WEEE).
All of the instructions provided within this letter can be reviewed in greater detail within
the Satellite C50-J / Satellite Pro C50-J Series Maintenance Manual.
Tools Required
In order to remove internal components of the Satellite C50-J / Satellite Pro C50-J some tools
from the list below may be required located in Chapter 4 Replacement Procedures of the
Dynabook Maintenance Manual
For your safety and the safety of the people around you, it is important that you use
Electrostatic Discharge (ESD) equipment. Correctly utilizing of the equipment increases the
percentage of successful repairs and saves on the cost of damaged or destroyed parts. The
following equipment is required for disassembly and assembly.
■ One Philips screwdriver with type 0 bit (for S-THIN HEAD screws)
■ One Philips screwdriver with type 1 bit (for screws other than above)
■ One flat-blade screwdriver (for removing the CPU)
■ Tweezers (for lifting screws)
■ ESD mats (lay on work table or floor)
■ An ESD wrist strap and heel grounder
■ Anti-static carpet or flooring
■ Air-ionizers in highly static sensitive areas
■ Antenna coaxial cable disconnector
■ Special syringe (for applying grease)
Table of Contents
• (Page 2-3) Removing the Lithium Ion Battery (Main Battery, No coin cell battery)
• (Page 4) Removing the SSD
• (Page 5-34) LCD, Printed Circuit / Wiring Boards (PCB/ PWB system board)
• (Page 35-36) AC Adapter and external provide cable

1. Removing the Lithium Ion Battery (Main Battery, No coin cell battery)
Please refer to the information below for instructions regarding the identification and removal of
the lithium ion battery. Further maintenance instructions can be found in section 4.2 of the
Satellite C50-J / Satellite Pro C50-J Maintenance Manual. Some tools are required in order
to remove this component. Once removed, these components should be recycled as per local
requirements.
To remove the battery, the base assembly must be removed first:
Removing Base Enclosure
Remove Base Enclosure according to the following procedures and Figure 4-7.
1. Remove seven M2.0x7.5x4.5black Phillips head screws securing Base
Enclosure and four M2.0x.3.5x4.5black Phillips head screws securing
Base Enclosure.
2. Remove Base Enclosure.
Figure 4-7 Removing Base Enclosure

CAUTION: When handling the battery packs, use care not to short
circuit the terminals. Do not drop, hit, twist, or bend the battery packs.
Do not scratch or break up their casing.
NOTE: Dispose of the used battery packs as required by local ordinances or
regulations.
Removing Battery Pack
Remove battery pack according to the following procedures and Figure 4-9.
1. Remove Battery Mylar.
2. Disconnect Battery cable from CN3 on system board.
3. Remove four M2.0x3.5x4.5 black Phillips head screws securing Battery.
4. Remove Battery.
Figure 4-9 Removing battery pack

CAUTION: Do not touch the connectors on SSD and in the computer with your bare
hands. SSD can fail if they are contaminated with sweat, natural oils, etc. from your
hands.
2. Removing the SSD
To remove the SSD the mainboard must be removed first.
Please refer to the information listed in section 4.8 of the Satellite C50-J / Satellite Pro C50-J
Series Maintenance Manual to check how the mainboard is removed.
Please refer to the information below for the removal of the SSD.
One Philips screwdriver with type 1 bit will be required to remove the screws indicated in the
locations below. Once removed, these components should be recycled as per local requirements.
Removing SSD
Remove SSD according to the following procedures and Figures 4-13.
1. Remove thermally conductive pad
2. Remove one M2_L0.3xL2.2×OD5.5×T0.6 black Phillips head screw
securing the SSD.
3. Pull SSD from CN8 on system board.
Figure 4-13 Removing SSD

3. Removing the LCD and Printed Circuit / Wiring Boards
Beside the LCD and the main PCB, there are further small PCBs and components which are
in the scope of the WEEE Directive. The removal of these components is described in detail in
the chapter 4 of the associated maintenance manual.
Replacement Procedures
Figures
Figure 4.2 Removing Base Enclosure ...................................................................................... 4-7
Figure 4.3 Removing Battery Pack ........................................................................................ 4-9
Figure 4.4 Removing SSD ................................................................................................... 4-13
Figure 4.5 Removing SODIMM ........................................................................................... 4-14
Figure 4.6 Removing LCD Module Assembly ..................................................................... 4-17
Figure 4.7 Removing the CPU Cooling Module and Fan ..................................................... 4-19
Figure 4.7 Applying silicon grease (CPU)............................................................................. 4-20
Figure 4.8 Removing System Board ...................................................................................... 4-21
Figure 4.9 Removing IO Board ............................................................................................ 4-23
Figure 4.10 Removing Speaker .............................................................................................. 4-25
Figure 4.11 Removing the LCD Module Mask .................................................................... 4-27
Figure 4.12 Removing LCD Panel follow direction. ........................................................... 4-29
Figure 4.12 Removing the LCD cable .................................................................................. 4-32
Figure 4.12 LCD cable below the LCD module cover latch ................................................. 4-32
Figure 4.13 Removing the CCD Module .............................................................................. 4-33
Figure 4.14 Removing the Touch pad Module......................................................................4-35

4.2 Base Enclosure
Removing Base Enclosure
Remove Base Enclosure according to the following procedures and Figure 4-7.
1. Remove seven M2.0x7.5x4.5black Phillips head screws securing Base
Enclosure and four M2.0x.3.5x4.5black Phillips head screws securing Base
Enclosure.
2. Remove Base Enclosure.
Figure 4-7 Removing Base Enclosure

Installing Base Enclosure
Install Base Enclosure according to the following procedures and Figure 4-7.
1. Place Base Enclosure in correct position.
2. Secure Base Enclosure with seven M2.0x7.5x4.5black Phillips head
screws and M2.0x3.5x4.5black Phillips head screws .

CAUTION: When handling the battery packs, use care not to short
circuit the terminals. Do not drop, hit, twist, or bend the battery packs.
Do not scratch or break up their casing.
NOTE: Dispose of the used battery packs as required by local ordinances or
regulations.
4.3 Battery Pack
Removing Battery Pack
Remove battery pack according to the following procedures and Figure 4-9.
1. Remove Battery Mylar.
2. Disconnect Battery cable from CN3 on system board.
3. Remove four M2.0x3.5x4.5 black Phillips head screws securing Battery.
4. Remove Battery.
Figure 4-9Removing battery pack

CAUTION: The battery packs contain a lithium ion battery, which can
explode due to improper re placement, use, handling, or disposal. Always
dispose of the battery packs as required by local or dinances or
regulations. Use only replacement batteries recommended by Dynabook.
NOTE: Visually check the battery's terminals. If they are dirty, clean them
with a dry cloth.
Installing Battery Pack
Install battery pack according to the following procedures and Figure 4-9.
1. Take a new or recharged Battery Pack.
2. Place Battery Pack in correct position.
3. Secure Battery with four M2.0x3.5x4.5 black Phillips head screws.
4. Check the battery screw hole ,if there is cracking, please replace the parts.
5. Connect Battery cable to CN3 on system board.
6. Installing Battery Mylar.

CAUTION: Do not touch the connectors on SSD and in the computer with your
bare hands. SSD can fail if they are contaminated with sweat, natural oils, etc.
from your hands.
4.4 SSD
Removing SSD
Remove SSD according to the following procedures and Figures 4-13.
1. Remove thermally conductive pad
2. Remove one M2_L0.3xL2.2×OD5.5×T0.6 black Phillips head screw
securing the SSD.
3. Pull SSD from CN8 on system board.
Figure 4-13 Removing SSD

Installing SSD
Install SSD according to the following procedures and Figures 4-13.
1.Insert SSD into CN8 on system board.
2.Secure it with one M2_L0.3xL2.2×OD5.5× T0.6 black Phillips head screw.
3.Install thermal silica gel
CAUTION: Do not touch the connectors on SSD and in the computer with your bare
hands. SSD can fail if they are contaminated with sweat, natural oils, etc. from your hand

CAUTION: Do not touch the connectors on SODIMM and in the computer with your
bare hands. SODIMM can fail if they are contaminated with sweat, natural oils, etc. from
your hands.
4.5 SODIMM
Removing SODIMM
Remove SODIMM according to the following procedures and Figures 4-14.
1. Press both sides of the J1 connector shrapnel 15° with both index fingers
2. Take out the SODIMM at 45° horizontal
Figure 4-14 Removing SODIMM

CAUTION: Do not touch the connectors on SODIMM and in the computer with your bare
hands. SODIMM can fail if they are contaminated with sweat, natural oils, etc. from your
hands
Installing SODIMM
Install SODIMM according to the following procedures and Figures 4-14.
1. Aim the SODIMM at the JI slot
2. Lightly press the SODIMM upper and lower sides with two fingers

NOTE: Touch SKU will provide the FRU parts as LCD Module Assembly.
4.6 LCD Module Assembly
Removing LCD Module Assembly
Remove LCD Module Assembly according to the following procedures and Figure 4-17.
1. Remove tape for fasten LCD cable.
2. Remove PC gasket from WIFI module Remove plastic chips on wifi module.
3. Disconnect LCD cable from CN6 on system board.
4. Released wireless antenna cables from top cover latch.
5. Open LCD Module Assembly at an angle of 90 degrees.
6. Remove six M2.0x5.5x4.5 black Phillips head screws securing LCD
Module Assembly with top cover.
7. Remove LCD Module Assembly.
Figure 4-17 Removing the LCD Module assembly

Figure 4-18 Removing the LCD Module assembly

Installing the LCD Module Assembly
Install the LCD Module Assembly according to the following procedures and Figure 4- 17and 4-
18.
1. Place the LCD Module Assembly in the correct position.
2. Secure LCD Module Assembly with four M2.0x5.5x4.5 black Phillips head
screws. (▲ mark portions)
3. Close LCD Module Assembly.
4. Note the module definition :grey wire connects MAIN interface and black wire connects AUX
5. Routing antenna cables under Rib on Top cover to secure antenna cables according to
Figure 4-18.
6. Put the PC gasket back on the WiFi module Install plastic chips on wifi module.
7. Connect LCD cable to CN6 on system board.
8. Routing LCD cable according to Figure 4-18, need to under Rib on Top Cover.
9. Stick tape to fasten LCD cable.

CAUTION: When removing CPU Cooling Module and Fan, keep following in mind:
The CPU Cooling Module can become very hot during operation. Be sure to let it
cool down before starting the repair work. Hold Fan on its outline, do not press on
its center. Do not touch or cause damage to the fan in the CPU Cooling Module.
4.7 CPU Cooling Module and Fan
Remove CPU Cooling Module and Fan_VGA SKU only
Remove CPU Cooling Module and Fan according to the following
procedures and Figures 4-19 and 4-20.
1. Remove cushion for FAN.
2. Remove four M2.0x3.0x4.5 black Phillips head screws securing CPU Cooling Module.
3. Remove CPU Cooling Module.
4. Disconnect Fan cable from CN21 on system board.
5. Remove the plastic pad from the fan screw.Remove the plastic pad from the fan
screw.
6. Remove three M2.0x3.0x4.5 black Phillips head screws securing Fan.
7. Remove FAN.
Figure 4-19Removing the CPU Cooling Module and
Fan

Figure 4-20 Applying silicon grease

4.8 System Board
Removing System Board
Remove System Board according to the following procedures and Figures 4-21.
1. Disconnect the following cable from the connector on System
Board: - Speaker cable from SPK.
- LCD cable from CN6.
- IO Board cable from CON19
- Touch Pad cable from TPCON1.
- Keyboard cable from KBCON1.
- FAN cable from CN21.
- Battery Pack cable from CN3.
- RTC Battery from RTC CN1.
- Released wireless antenna cables from top cover latch.
2. Remove four M2.0x3.0x4.5and one M2.0x2.5x5.0 black Phillips head
screw securing System Board.
3. Remove System Board.
4. Remove the high position adhesive paper of DC seat
Figure 4-21 Removing System Board

NOTE:
Be sure to place all cables into the ditch to avoid the damage during
assembling the bottom cover.
NOTE:
Be sure to align Type-C connector to Top Cover, when place system board on
the unit.
Install System Board according to the following procedures and Figures 4-21.
1. Place System Board in correct position.
2. Securing System Board with four M2.0x3.0x4.5and one M2.0x2.5x5.0
black Phillips head screw.
( ▲ mark portions)
3. Connect following cable to the connector on System Board:
- Speaker cable from SPK.
- LCD cable from CN6.
- IO Board cable from CON19
- FFC-MB terminal connected to TP-CON1
- keyboard connection KBCON1,over the speaker wire wiring. -
FAN cable from CN21.
- Battery Pack cable from CN3.
- RTC Battery from RTCCN1.
- Released wireless antenna cables from top cover latch. - Place System Board in
correct position
- DC block paste high temperature adhesive paper